2446 papers
Explore the fascinating intersection where quantum materials meet the complexity of everyday environments in the Cond-Mat — Mes-Hall section. This field investigates how tiny particles behave when caught between the orderly world of single atoms and the chaotic nature of bulk matter, revealing the hidden rules that govern electricity, magnetism, and heat in novel substances.
Gist.Science brings these cutting-edge discoveries to you directly from arXiv, the leading repository for physics preprints. We process every new submission in this category as soon as it appears, offering both straightforward, plain-language explanations and deep technical summaries to help researchers and curious minds alike grasp the latest breakthroughs without getting lost in dense equations.
Below are the most recent papers in this dynamic area of condensed matter physics, ready for you to explore.
This paper introduces a quantum master-equation framework to quantitatively analyze decoherence in spin-orbit-coupled ferromagnets, revealing a crossover between intrinsic and extrinsic anomalous Hall regimes and identifying a previously unrecognized, significant extrinsic contribution arising from second-order scattering processes tightly linked to quantum decoherence.
This paper reports the observation of Barkhausen-like switching-current jumps in an InAs/Al Josephson junction at millitesla fields, which serve as an interferometric probe revealing avalanche-like transitions between metastable local magnetic configurations that directly modulate the device's superconducting interference pattern.
This paper investigates a non-Hermitian twisted bilayer - lattice with Hatano-Nelson hopping and staggered mass, revealing that non-reciprocity splits the conventional magic angle into three distinct non-Hermitian magic angles hosting isolated flat bands, induces point-gap topology and the skin effect, and ultimately destabilizes intermediate topological phases by driving gap-closing boundaries to merge and annihilate.
This paper presents a symmetry-resolved classification framework for polarized small-angle neutron scattering patterns from magnetic vortex ensembles, demonstrating that their angular anisotropy organizes into four distinct regimes governed primarily by rotational symmetry and the statistical distribution of vortex axes rather than detailed core structures.
This paper demonstrates that brief deep-UV exposure significantly enhances the electronic quality of encapsulated graphene by neutralizing charged impurities in boron nitride, thereby enabling the observation of rare quantum phenomena like even-denominator fractional quantum Hall states and superlattice minibands in previously disordered devices.
This paper presents a scalable molecular beam epitaxy strategy utilizing gradient sub-monolayer InAs deposition and strain-reducing capping to achieve wafer-scale, low-density, electrically tunable InAs/InGaAs quantum dots on GaAs that emit single photons in the O-band for quantum photonics applications.
This paper presents a stochastic framework to calculate the full statistics of voltage fluctuations in nonlinear dissipative circuits, demonstrating how circuit feedback resolves Brillouin's paradox to ensure thermodynamic consistency and applying these results to tunnel junctions and diodes.
This paper demonstrates that the nonequilibrium mechanism responsible for negative electronic friction in molecular nanojunctions inherently generates significant non-Markovian effects that critically influence vibrational dynamics and the stability of Langevin descriptions, as verified by comparison with numerically exact quantum simulations.
This study demonstrates that aligning superparamagnetic maghemite nanoparticles within a polymer matrix using a static magnetic field significantly enhances the nanocomposite's magnetic susceptibility from 21 to 50 while reducing losses, validating its potential as a high-frequency, eddy-current-free soft magnetic material for power electronics.
This study demonstrates that the ultrafast Barnett effect, induced by resonantly exciting circularly-polarized optical phonons in paramagnetic substrates, can be harnessed to selectively and permanently reverse the magnetization of a nearby magnetic heterostructure, establishing a new method for ultrafast non-local magnetic control.